What will come in place of '?' in the following number series?
155, 258, 399, ?, 819, 1110
5 + 52 + 53 = 155
6 + 62 + 63 = 258
7 + 72 + 73 = 399
8 + 82 + 83 = 584 = ?
9 + 92 + 93 = 819
10 + 102 + 103 = 1110
9. Which of the following has acquihired a Bangalore-based AI startup Kint.io?